201422312 has 48 divisors (see below), whose sum is σ = 467396640. Its totient is φ = 79679808.

The previous prime is 201422311. The next prime is 201422323. The reversal of 201422312 is 213224102.

It is not an unprimeable number, because it can be changed into a prime (201422311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1178 + ... + 20105.

It is an arithmetic number, because the mean of its divisors is an integer number (9737430).

Almost surely, 2^201422312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201422312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233698320).

201422312 is an abundant number, since it is smaller than the sum of its proper divisors (265974328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201422312 is a wasteful number, since it uses less digits than its factorization.

201422312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21322 (or 21305 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 201422312 is about 14192.3328596817. The cubic root of 201422312 is about 586.1865628459.

Adding to 201422312 its reverse (213224102), we get a palindrome (414646414).

The spelling of 201422312 in words is "two hundred one million, four hundred twenty-two thousand, three hundred twelve".